Theron has begun attending Kabbalah classes in Hollywood and has been wearing the distinctive red bracelet that denotes followers.
Other famous followers of Kabbalah include Madonna and Demi Moore.
"Charlize is wearing the thickest red bracelet, which helps ward off bad will," a source told the Daily Mail.
"Kabbalah is not just a religious interest for her - she also views it as a means to more of a social life and mixing with the Hollywood elite."
Theron was recently seen dining with Hollywood director Quentin Tarantino soon after her Townsend breakup.